Horizontal cut and fill method of copper mining in Jerome, Arizona

Smoke rises from burning stopes at a copper mine in Jerome, Arizona. Copper ore is mined by the horizontal cut and fill method. Miners shovel broken ore onto chutes running through plank floor in a stope. Cribs are built above ore chutes in the floor. Waste ore is drawn through a chute car and is dumped in the open stope to fill the stope.